1873.] REV. O. P. CAMBRIDGE ON SIBERIAN SPIDERS. 443 



A single adult male was contained in M. Taczanowski's Siberian 

 collection. 



Erigone (Neriene) sollers, sp. n. (Plate XLI. fig. 8.) 



Adult male, length 1| line. 



In the somewhat cylindric elongate general form of this Spider 

 there is great similarity to E.fugax (Cambr.) ; it also resembles 

 that species in the richness of the orange yellow-red colour of the 

 legs, and the deep glossy yellow-brown cephalothorax ; this part is 

 of an elongate-oval form, but very slightly impressed laterally for- 

 wards, and rather flattened, or much less convex above than many 

 other species ; the sides appeared under a lens to be finely rugulose 

 or striated, the caput being perfectly smooth ; the height of the 

 clypeus equals half that of the facial space. 



The eyes are in the ordinary position, not very large or greatly 

 unequal in size ; those of the hinder row are about equally separated 

 from each other ; those of the fore central pair are contiguous to 

 each other, and equal in size to those of the hind central Dair ; the 

 fore laterals being rather the largest of the eight. 



The legs are tolerably strong, not very long ; their relative length 

 is 4, 1, 2, 3; they are of a rich reddish orange-yellow colour, 

 furnished thickly with strongish hairs and a few fine short erect 

 bristles. 



The palpi are short. The radial joint is rather shorter and much 

 stronger than the cubital; its fore extremity on the upperside is 

 produced into a long, strongish, tapering, curved apophysis with a 

 truncated extremity, which is directed outwards ; from within the cur- 

 vature of this apophysis, and apparently springing from underneath 

 the joint, is another slightly curved apophysis. The radial joint is 

 also rather obtusely prominent at its fore extremity on the other 

 side, and more pointedly so behind. The digital joint is large ; and 

 the palpal organs are well developed, rather complex, and towards 

 their extremity on the outer side is a strongish, black, filiform, 

 tapering spine, coiled in a circular form. 



The sternum is convex, very glossy, and of a deep vellow-brown 

 colour, furnished with a few fine bristly hairs. 



The abdomen is elongate-oval, hairy, and of a greenish black- 

 brown colour, with four slightly impressed dots in a quadrangle 

 about the middle of the upperside ; and, besides numerous yellowish 

 points over its surface, several transverse angular lines are visible 

 (when in spirit of wine) on the hinder half of the upperside ; the 

 spinners and plates of the spiracles are yellow. 



A single adult male of this very distinct species was contained in 

 M. Taczanowski's collection, found by himself at Kiew, in Poland. 



Erigone (Neriene) intercepta, sp. n. (Plate XLI. fig. 9.) 



Adult male, length 1^ line. 



The cephalothorax is very glossy and of a dark yellow-brown 

 colour ; looked at from above, and rather behind, it is of a regular 

 oval form, rather broadest behind, and without lateral constriction 



